A catenary is a curve made by a chain or string created when it is supported only on its ends. It appears like a parabola but has a slightly altered shape and is used to build certain types of arches.
Example of Catenary Arch in Construction
FlyingConcrete Construction
Ruled Surfaces
A ruled surface is one that can be created by connecting line segments between two curves. As the points are swept about, the surface becomes defined by curves.
Example of Hyperboloid Ruled Surface
Adina Roth, Student
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